Unger Ergotec Ninja Scraper 4" 10cm UNGER offers scrapers and blades for all needs. The GLASS SCRAPERS provide an extra sharp carbon steel blade with two sharp edges. Perfect to remove stickers, paint etc. from glass. These blades are available either as robust carbon steel blade or a high-quality, and flexible stainless steel blade. The SURFACE SCRAPERS provide extra solid, reversible sharp/blunt blades. The sharp edge is ideal for removing stubborn objects such as stickers or paint, while the blunt side is great at removing heavy duty dirt. UNGER PREMIUM GLASS SCRAPER BLADES STAINLESS STEEL Longer lasting: Dual sided stainless steel blades. Extremely rust resistant. Designed with a specific flexibility to resist blade edge breaks and chips Designed for speed and ease of use: UNGER?s new 440A stainless steel blades are fabricated specifically for superior cutting and removal of unwanted debris on glass. Each blade receives a prec